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Chapter 7 - Electric and Magnetic Fields - Electric Field Strength
11問 • 2年前
  • Oluwole Akande
  • 通報

    問題一覧

  • 1

    What is the Electric Field Strength

    The force per unit charge felt by an object in an electric field

  • 2

    Electric Field Strength, E (N/C) =

    Force, F (N) / Charge, Q (C)

  • 3

    Electric Field Strength around a single Point Charge =

    Coulomb Constant, k × Charge, Q (C) / Distance from Charge², r² (m²)

  • 4

    Which direction does the field move in

    Radially away from positive charges and radially towards negative charges

  • 5

    What is a Uniform Field

    A field with the same strength at any point inside it

  • 6

    How is a Uniform Field typically produced

    From parallel charged plates, one negative and one positive, creating a potential difference across them

  • 7

    What is a Voltage difference between parallel plates caused by

    The different charges between both plates

  • 8

    Electric Field Strength in Uniform Field, E (V/m) =

    Voltage Drop, V (V) / Distance between Plates, d (m)

  • 9

    In a uniform field, the field lines are...

    Equally spaced, Straight, Parallel

  • 10

    Work Done moving a Positive Charge to the Positive Plate, W (J) =

    Force, F (N) × Distance between Plates, d (m)

  • 11

    How is the Equation, W = fd, derived

    1 - We know that W is also equal to the Charge, Q, × Change in Voltage, ΔV, 2 - Therefore Fd = Q × ΔV, 3 - Rearrange to get F/Q = ΔV/d, 4 - As E = F/Q, E also = ΔV / d

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    問題一覧

  • 1

    What is the Electric Field Strength

    The force per unit charge felt by an object in an electric field

  • 2

    Electric Field Strength, E (N/C) =

    Force, F (N) / Charge, Q (C)

  • 3

    Electric Field Strength around a single Point Charge =

    Coulomb Constant, k × Charge, Q (C) / Distance from Charge², r² (m²)

  • 4

    Which direction does the field move in

    Radially away from positive charges and radially towards negative charges

  • 5

    What is a Uniform Field

    A field with the same strength at any point inside it

  • 6

    How is a Uniform Field typically produced

    From parallel charged plates, one negative and one positive, creating a potential difference across them

  • 7

    What is a Voltage difference between parallel plates caused by

    The different charges between both plates

  • 8

    Electric Field Strength in Uniform Field, E (V/m) =

    Voltage Drop, V (V) / Distance between Plates, d (m)

  • 9

    In a uniform field, the field lines are...

    Equally spaced, Straight, Parallel

  • 10

    Work Done moving a Positive Charge to the Positive Plate, W (J) =

    Force, F (N) × Distance between Plates, d (m)

  • 11

    How is the Equation, W = fd, derived

    1 - We know that W is also equal to the Charge, Q, × Change in Voltage, ΔV, 2 - Therefore Fd = Q × ΔV, 3 - Rearrange to get F/Q = ΔV/d, 4 - As E = F/Q, E also = ΔV / d